CN101901008A - Remote control system - Google Patents
Remote control system Download PDFInfo
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- CN101901008A CN101901008A CN2010102345107A CN201010234510A CN101901008A CN 101901008 A CN101901008 A CN 101901008A CN 2010102345107 A CN2010102345107 A CN 2010102345107A CN 201010234510 A CN201010234510 A CN 201010234510A CN 101901008 A CN101901008 A CN 101901008A
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- control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a remote control system which is applied in the field of coal mining. The system comprises a main control device, a programmable control device, a remote speed-regulating interface circuit and a variable-frequency speed-regulating device, wherein the main control device receives a control command, converts the control command into a control signal and transmits the control signal to the corresponding programmable control device; the programmable control device receives the control signal, converts the control signal into a variable-frequency signal and transmits the variable-frequency signal to the remote speed-regulating interface circuit connected with the programmable control device; the remote speed-regulating interface circuit receives the variable-frequency signal and selects a corresponding speed interface according to the variable-frequency signal; and the variable-frequency speed-regulating device adjusts an output frequency according to the selected speed interface and transmits the output frequency to a motor of coal mining equipment so as to control the startup, shutdown and/or speed regulation of the motor of the coal mining equipment. The remote control system disclosed by the invention can perform remote centralized control on the underground programmable control device so as to realize remote control of a frequency converter, indirectly realize control of the motor speed of the coal-mining device, finally realize control of the output of the coal mining device, simplify control operation and reduce working intensity.
Description
Technical field
The present invention relates to field of coal mining, relate in particular to a kind of tele-control system.
Background technology
In the existing coal mining technology, the speed of employing adjusting feeder and relevant device realizes the adjusting to coal mining output usually.But, because coalcutter and relevant device are distributed in the diverse location of mine usually, the staff need walk in whole mine, finds corresponding apparatus to control its unlatching, close and regulate its speed, and then realizes to the control of coalcutter with to the adjusting of its coal mining output.The whole control work realizes very difficulty, and has increased staff's working strength.
Summary of the invention
In view of this, the invention provides a kind of tele-control system, realize Long-distance Control, simplified Control work, reduced working strength underground equipment.
For achieving the above object, the embodiment of the invention discloses following scheme:
A kind of tele-control system is applied to field of coal mining, comprising: master control set, a plurality of programmable control unit, RHVC and long-range speed governing interface circuit, wherein:
Master control set is used to receive control command, and described control command is converted to control signal, and described control signal is sent to corresponding programmable control unit;
Programmable control unit is used to receive described control signal, and converts described control signal to frequency variation signal, sends to coupled long-range speed governing interface circuit;
Long-range speed governing interface circuit is used to receive described frequency variation signal, selects corresponding speed interface according to described frequency variation signal;
RHVC is used for adjusting output frequency according to the speed interface of described selection, and sends to the coal excavation apparatus motor, controls its unlatching, closes and/or the speed adjusting.
Preferably, this system also comprises:
The parameter acquisition device is used for the operational factor of collecting device, and described operational factor is transferred to master control set.
Preferably, described converter plant is four-quadrant frequency converter or two quadrant frequency converters.
Preferably, when described converter plant is two quadrant frequency converters, be in series with dissipative cell on the dc bus of described two quadrant frequency converters.
Preferably, when described converter plant is two quadrant frequency converters, be parallel with storage capacitor on the dc bus of described two quadrant frequency converters.
Preferably, described dissipative cell is an illuminating lamp.
Preferably, described illuminating lamp links to each other with described frequency converter by transformer.
Preferably, described operational factor comprises: any one in current of electric, downhole temperature, motor temperature, motor speed and the converter plant output frequency or a plurality of combinations.
From above-mentioned technical scheme as can be seen, tele-control system disclosed by the invention, can carry out remote centralized control to the programmable control unit of down-hole, and then can realize Long-distance Control to converter plant, realize control indirectly, the final control that realizes the coal excavation apparatus output quantity to the motor speed of coal excavation apparatus.Simplify control operation, reduced working strength.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment 1 disclosed tele-control system;
Fig. 2 is the structural representation of embodiment 2 disclosed tele-control systems;
Fig. 3 is the converter plant structural representation in the embodiment 3 disclosed tele-control systems.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
A kind of tele-control system that is applied to field of coal mining disclosed by the invention, to realize the remote centralized control to down-hole coal excavation apparatus, its embodiment is as follows:
Embodiment one
The structure of the disclosed tele-control system of present embodiment comprises as shown in Figure 1: master control set 11, programmable control unit 12, long-range speed governing interface circuit 13 and RHVC 14, wherein:
Long-range speed governing interface circuit 13 is used to receive described frequency variation signal, selects corresponding speed interface according to described frequency variation signal.Long-range speed governing interface circuit 13 has realized the frequency variation signal of programmable control unit 12 is sent to the purpose of converter plant 14, can a plurality of speed interface be set according to practical application on long-range speed governing interface circuit 13, with the different frequency variation signal of correspondence.For example, if frequency variation signal for frequency values is adjusted to 0, then means and wants closing device, then Dui Ying speed interface is for stopping, if frequency variation signal is that frequency values is increased, mean then to increase frequency and then raising speed that then Dui Ying speed interface is the interface greater than the present speed value.Each interface all has the interface encoded radio corresponding with it, and for example 00 representative stops, and 01 represents low speed, and 10 represent at a high speed, and 11 representatives are opened.
RHVC 14 is used for adjusting output frequency according to the speed interface of described selection, and sends to the coal excavation apparatus motor, controls its unlatching, closes and/or the speed adjusting.RHVC reads the encoded radio of selected interface, according to the interface type of encoded radio correspondence, carries out corresponding program, adjust output frequency, and adjusted frequency exported to the coal excavation apparatus motor, adjust the frequency of motor, and then realize adjusting motor speed.
Tele-control system disclosed by the invention, can carry out remote centralized control to the programmable control unit of down-hole, and then can realize Long-distance Control to converter plant, realize control indirectly, the final control that realizes the coal excavation apparatus output quantity to the motor speed of coal excavation apparatus.Simplify control operation, reduced working strength.
Embodiment two
The structure of the disclosed tele-control system of present embodiment comprises as shown in Figure 2: master control set 21, programmable control unit 22, long-range speed governing interface circuit 23, RHVC 24 and parameter acquisition device 25.
Wherein, parameter acquisition device 25 is used to gather parameters such as current of electric, downhole temperature, motor temperature, motor speed and converter plant output frequency, these parameters are returned to master control set 21, master control set 21 is judged current each equipment running status according to the value of each operational factor, realization is to the detection of equipment running status, when detecting parameter and exceed preset value, can in time control the parameter of adjustment equipment, make its operate as normal.
The disclosed tele-control system of present embodiment is gathered feedback by the operational factor to underground equipment, realizes the real-time monitoring to underground equipment, the security that has improved system works.
Embodiment three
Frequency-converting control device in the tele-control system disclosed by the invention can be four-quadrant frequency converter or two quadrant frequency converters.When adopting two quadrant frequency converters, because the reciprocating type feeder that uses under the coal mine is at the reciprocal inertia sliding force that exists in service of machinery, the inertia sliding force can cause motor to be in the phenomenon that in short-term rotor speed surpasses the rotating speed of rotating magnetic field, that is to say, motor must have the time of half to be in generating state in reciprocating plate operation one-period.Because two quadrant frequency converters adopt diode rectifier bridge; can't realize the two-way flow of energy; so have no idea the energy that motor produces is turned back to electricity energy consumption; the electric energy that sends can only be by the anti-dc bus of delivering to of the inverter circuit of frequency converter; thereby cause DC bus-bar voltage to raise; when voltage reached the ceiling voltage of dc bus, frequency converter can can't normally move because of the superpotential auto stop.
The structure of two quadrant converter plants in the disclosed tele-control system of present embodiment is connected with dissipative cell 31 as shown in Figure 3 on the dc bus of two quadrant frequency converters.Dissipative cell 31 can also can be illuminating lamp for power consumption resistance.In order to make the illuminating lamp can operate as normal, can insert transformer at the output terminal of frequency converter, with voltage transitions for being fit to the magnitude of voltage of illuminating lamp.Dissipative cell 31 can consume the feeder reciprocating plate because the electric energy that negative power is sent guarantees that the voltage of dc bus is stable, and then guarantees the operate as normal of frequency converter, has reduced accident rate, has reduced maintenance cost.Enlarged the usable range of two quadrant frequency converters simultaneously.
Embodiment four
Present embodiment discloses the structure of two quadrant converter plants in the another kind of tele-control system, and its one-piece construction is identical with Fig. 3.Just the dissipative cell of connecting among Fig. 3 is replaced with the storage capacitor that is connected in parallel on the dc bus.When DC bus-bar voltage raise, the electrical power storage of increase was in storage capacitor, and when motor entered the power consumption state, storage capacitor outputed to motor with electric energy, and power supply machine uses.
The structure of the disclosed two quadrant converter plants of present embodiment can realize that the electric energy that will produce is applied in the process of electrical consumption electric energy, has reduced the use amount of electric energy to a certain extent, has reduced cost.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
The professional can also further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. a tele-control system is characterized in that, is applied to field of coal mining, comprising: master control set, a plurality of programmable control unit, RHVC and long-range speed governing interface circuit, wherein:
Master control set is used to receive control command, and described control command is converted to control signal, and described control signal is sent to corresponding programmable control unit;
Programmable control unit is used to receive described control signal, and converts described control signal to frequency variation signal, sends to coupled long-range speed governing interface circuit;
Long-range speed governing interface circuit is used to receive described frequency variation signal, selects corresponding speed interface according to described frequency variation signal;
RHVC is used for adjusting output frequency according to the speed interface of described selection, and sends to the coal excavation apparatus motor, controls its unlatching, closes and/or the speed adjusting.
2. system according to claim 1 is characterized in that, also comprises:
The parameter acquisition device is used for the operational factor of collecting device, and described operational factor is transferred to master control set.
3. system according to claim 2 is characterized in that, described RHVC is four-quadrant frequency converter or two quadrant frequency converters.
4. system according to claim 2 is characterized in that, when described RHVC is two quadrant frequency converters, is in series with dissipative cell on the dc bus of described two quadrant frequency converters.
5. system according to claim 2 is characterized in that, when described RHVC is two quadrant frequency converters, is parallel with storage capacitor on the dc bus of described two quadrant frequency converters.
6. system according to claim 4 is characterized in that, described dissipative cell is an illuminating lamp.
7. system according to claim 6 is characterized in that, described illuminating lamp links to each other with described frequency converter by transformer.
8. according to any described system among the claim 2-7, it is characterized in that described operational factor comprises: any one in current of electric, downhole temperature, motor temperature, motor speed and the converter plant output frequency or a plurality of combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102345107A CN101901008B (en) | 2010-07-20 | 2010-07-20 | Remote control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102345107A CN101901008B (en) | 2010-07-20 | 2010-07-20 | Remote control system |
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| Publication Number | Publication Date |
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| CN101901008A true CN101901008A (en) | 2010-12-01 |
| CN101901008B CN101901008B (en) | 2011-11-02 |
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| CN2010102345107A Active CN101901008B (en) | 2010-07-20 | 2010-07-20 | Remote control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114384813A (en) * | 2021-11-30 | 2022-04-22 | 重庆电子工程职业学院 | Early warning prompt system of intelligent home |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6590504B1 (en) * | 1999-06-07 | 2003-07-08 | Dbt Automation Gmbh | Method and apparatus for the remote controlled actuation of a control device |
| CN1801014A (en) * | 2004-12-30 | 2006-07-12 | 中国科学院沈阳计算技术研究所有限公司 | Embedded digitized automatic control device for coal mining machine |
| WO2006097097A1 (en) * | 2005-03-17 | 2006-09-21 | Tiefenbach Control Systems Gmbh | Extraction controller for coal mining |
-
2010
- 2010-07-20 CN CN2010102345107A patent/CN101901008B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6590504B1 (en) * | 1999-06-07 | 2003-07-08 | Dbt Automation Gmbh | Method and apparatus for the remote controlled actuation of a control device |
| CN1801014A (en) * | 2004-12-30 | 2006-07-12 | 中国科学院沈阳计算技术研究所有限公司 | Embedded digitized automatic control device for coal mining machine |
| WO2006097097A1 (en) * | 2005-03-17 | 2006-09-21 | Tiefenbach Control Systems Gmbh | Extraction controller for coal mining |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114384813A (en) * | 2021-11-30 | 2022-04-22 | 重庆电子工程职业学院 | Early warning prompt system of intelligent home |
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| CN101901008B (en) | 2011-11-02 |
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Inventor after: Wang Xin Inventor after: Gong Zhijie Inventor after: Wu Wenming Inventor after: Fei Yunhe Inventor after: Zhang Chongjun Inventor after: Yue Hongtao Inventor before: Gong Zhijie Inventor before: Wu Wenming Inventor before: Fei Yunhe Inventor before: Deng Xuexiang Inventor before: Zhang Chongjun Inventor before: Wang Taihui Inventor before: Yue Hongtao |
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Free format text: CORRECT: INVENTOR; FROM: GONG ZHIJIE WU WENMING FEI YUNHE DENG XUEXIANG ZHANG CHONGJUN WANG TAIHUI YUE HONGTAO TO: WANG XIN GONG ZHIJIE WU WENMING FEI YUNHE ZHANG CHONGJUN YUE HONGTAO |
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